My Cubase 11 suddenly stopped detecting my yamaha steinberg usb audio interface. Here's what support told me to do that worked:
Hi Chris,
Let's try resetting Cubase.
1. Quit all running Applications including Cubase.
2. Hover over or right-click the start tile (lower-left corner by default) and right-click and choose file explorer
3. Navigate to C: > Users >"Your Folder" > AppData* > Roaming > Steinberg
4. Move any folder with Cubase in the name to the desktop leaving no Cubase titled folders behind.
5. Launch Cubase and test again. You know if the process worked if you are asked to register again(Cubase Nuendo and Sequel only)
We can undo these changes if necessary by repeating the steps but moving the folders in step 4 back to their original locations replacing any new ones that were created.
* AppData is hidden to show follow this.
1. In the file explorer ribbon click on the View Tab
2. Put a check in the hidden items box.
2. Hover over or right-click the start tile (lower-left corner by default) and right-click and choose file explorer
3. Navigate to C: > Users >"Your Folder" > AppData* > Roaming > Steinberg
4. Move any folder with Cubase in the name to the desktop leaving no Cubase titled folders behind.
5. Launch Cubase and test again. You know if the process worked if you are asked to register again(Cubase Nuendo and Sequel only)
We can undo these changes if necessary by repeating the steps but moving the folders in step 4 back to their original locations replacing any new ones that were created.
* AppData is hidden to show follow this.
1. In the file explorer ribbon click on the View Tab
2. Put a check in the hidden items box.